Crushing apparatus



Dec. 28, 1965 A. N. BowMAN CRUSHING APPARATUS 4 Sheets-Sheet 1 Filed April 15. 1965 ma www2 T wwf@ mw MUM MIN. V6 r A Elf N su Dec. 28, 1965 A. N. BowMAN 3,226,043

CRUSHING APPARATUS Filed April l5, 1965 4 Sheets-Sheet 2 INVENTOR.

Ara/ia /V. owman,

Dec. 28, 1965 A. N. BowMAN 3,226,043

CRUSHING APPARATUS Filed April 15. 1965 4 Sheets-Sheet 5 Affari/5w.

Dec. 28, 1965 A, N, BOWMAN 3,226,043

CRUSHING APPARATUS Filed April l5, 1965 4 Sheets-Sheet 4 IN V EN TOR.

Arx/ia IV. Bowman,

BY Parker Carer Honig/.s

United States Patent O 3,226,943 CRUSHING APPARATUS Arvid N. Bowman, Downers Grove, Ill., assiguor to Goodman Manufacturing Company, Chicago, Ill., a corporation of Illinois Filed Apr. 15, 1963, Ser. No. 279,692 Claims. (Cl. 241--101) This application is a continuation in part of application Serial Number 44,154 filed luly 20, 1960, now abandoned.

This invention relates in general to a crusher and loader for road building materials such as rocks or shells and more particularly to a new and improved discharge conveyor therefor. It also relates to a new method of loading the crushed material into trucks or similar load carrying vehicles.

Crushed rock, sea shells, coral and the like are widely used in surfacing roads throughout the continental United States. The latter two materials are extensively used in Florida and other coastal States, for example. Conventional gyratory Crushers or roll Crushers are ordinarily utilized in reducing these various raw materials to usable size. After crushing, the crushed material must be transported to stock piles or the site of a road building operation.

By combining the crushing operation and a truck loading operation in a single device, the overall material reduction process is, of course, greatly simplified. Since the advent of large machines combining these two operations, considerable savings in manpower and time have been realized. To lfully utilize the advantages of the combination crusher and loader, however, it will be apparent that a continuous operation would be highly desirable. Obviously, in a continuous operation, the amount of material which could be pushed through the machine in any one period and disposed of in the same period would be substantially increased.

Continuous operation of the crushing means in the crusher and loader gives rise to certain problems in conventional machines having a single final discharge point, particularly when trucks or other fixed volume receptacles are used as removal means. One of these problems is spillage. Crushed material may pile up during periods when a truck is being spotted under the single discharge point of a conventional machine whether it be a continuously or discontinuously operated machine.

Accordingly, it is a primary object of this invention to provide a continuously operating crusher and loader having a single discharge conveyor which is capable of continuously discharging into substantially fixed volume removal receptacles with no spillage.

Another object is to provide a swingable discharge conveyor for a crusher and loader.

Yet another object is to provide a unique power drive for a swingable discharge conveyor in a crushing and loading machine.

Still another object is to provide a unique power hookup for the conveyor belt of a swingable discharge conveyor in a crushing and loading machine.

Yet another object is to provide a power hook-up for a swingable discharge conveyor having a driven conveyor belt wherein a single power source mounted on the main frame to which the conveyor is mounted is the sole drive means.

Another object is to provide a combination crusher and loader for road material having a power operated swingable discharge conveyor which can be simply operated and controlled.

A further object is to provide an agglomerate material processing machine which produces a continuous stream of processed material and continuously discharges it 3,226,043 Patented Dec. 28, 1965 ICC to a plurality of discharge points with minimum spillage throughout the system.

Yet another object is to provide a method of continuously loading trucks with crushed road building material from a combination crusher and swingable conveyor loader.

Still another object is to provide a fast and inexpensive method of evenly loading crushed material in a succession of trucks or other material removal receptacles without interrupting the loading operation.

These and other objects of this invention will become apparent from time to time throughout the course of the following specification wherein like numerals identify like parts throughout.

The invention is illustrated more or less diagrammatically in the accompanying drawings wherein:

FIGURE 1 is a side elevation of the crusher and loader,

FIGURE 2 is a plan view of one end of the crusher and loader showing the discharge conveyor,

FIGURE 3 is a View taken along the line 3*3 of FIGURE 1,

FIGURE 4 is a view taken along the line 4 4 of FIGURE 3,

FIGURE 5 is an enlarged plan view with parts broken away of the discharge end of the crusher and loader showing the drive means for the discharge conveyor,

FIGURE 6 is a View taken along line 6-6 of FIG- URE 5,

FIGURE 7 is a view taken along line 7-7 of FIGURE 5, and

FIGURE 8 is a diagrammatic plan view of the discharge conveyor showing its relationship to the material carrying trucks in the loading operation.

A longitudinally extending irregularly shaped main frame is shown generally4 at 2 in FIGURE 1. Wheels 3 mounted on fixed axles support the rear end of the frame 2 and steerable front wheels 4 support the front end. Extending rigidly upwardly from the frame 2 at irregularly spaced intervals along its length are pairs of support members 5, 6, 7, 8, 9 and 10 of varying lengths.

A conventional reciprocating engine 14 is supported above the frame 2 between members 8 and 9. The engine 14 has a transversely extending drive shaft carrying a V-belt drive pulley 15. A fuel tank 16 which supplies fuel to the engine in a conventional manner is mounted on inclined stringers 17 extending between support mem- `bers 9 and 10.

Mounted on the main frame 2 immediately adjacent the engine 14 is a conventional roll crusher, shown generally at 18. The crusher 18 includes crushing rolls 19 and 20 adjustably mounted in a crusher framework 21. A driven ily wheel pulley 22 is connected by V-belts to the drive pulley 15 of the engine and turns the rolls through a suitable power transmission system in a conventional manner. A series of sprockets and sprocket chains might be utilized for example. A crusher feed chute 23 extends upwardly from a position immediately over the rolls 19 and 20 and is supported at its upper end by support members 7. A direct feed chute is indicated at 23a.

A vibrating screen assembly, shown generally at 28, is supported from the main frame 2 on inclined longitudinally extending stringers 29 which are in turn carried between support members 6 and 7. The stringers 29 support a counter balance flywheel 30 and a pair of screen elements, indicated by lines 31, 31a. Screen 31a discharges into direct chute 23a.

A fines chute 32 is suspended from the stringers 29 immediately below the screen assembly 28. The chute 'discharges into laterally extending lines conveyor 33 which has its receiving end positioned below the fines chute and its discharge end extending laterally of the main frame 2. The fines conveyor 33 is supported from the main frame in a conventional manner.

A feed chute 36 is supported from the main frame 2 between support members and 6 so as to be positioned immediately adjacent the vibratory screen assembly 28 in a position to deliver raw material, in this instance uncrushed rock, to the screen assembly. A horizontal conveyor 37 at the base of the feed chute 36 carries the raw material deposited in the feed chute on to the screen assembly 28. A common drive means in the form of an auxiliary motor, not shown, drives both the nes conveyor 33 and horizontal conveyor 37 through a direction changing idler 38, as will readily be seen in FIG- URE 1.

A xed conveyor 39 is secured to the main frame 2 beneath the roll crusher 18 so as to receive crushed material from the rolls. The conveyor 39 extends upwardly to a discharge point above the front end of the main frame 2. A shaft 40 (see FIGURE 2) extends transversely of conveyor 39 and is rotatively mounted in the conveyor framework at its discharge end. A conveyor belt drive pulley 41 (see FIGURE 2) is mounted on shaft 40 for rotation therewith. Tail pulley 42 is carried by the conveyor 39 at its opposite endand a conveyor belt 43 extends between the tail pulley and the drive pulley.

One end of the shaft 40 extends into and forms the output shaft for a conventional reduction gear box 45 which is mounted on the conveyor 39 at its discharge end. as seen in FlGURE 2. The gear box 45 has an input shaft 46 extending therefrom which carries a double groove pulley 47 immediately adjacent one end. A third pulley 48 which is slightly smaller than the pulleys 47 is located inwardly on shaft 84. A pair of conventi-onal V-belts 49 connect pulleys 47 with drive pulley 15 on the engine 14.

Adjacent the front end of the main frame 2 is a subframe, shown generally at 52, which extends transversely of the main frame and is secured thereto. The subframe 52, which is shown best in FIGURE 5, includes laterally extending stringers 53 and 54. Extending longitudinally of the main frame and connecting the stringers 53 and 54 are angle irons 55 and 56 adjacent one side of the frame 2 and angle iron 57 adjacent the other side of the frame. A longitudinally extending plate 59 overlies the stringers 53 and 54 adjacent the angle iron 57 and carries a compressed air reservoir tank 60. A conventional air compressor 61 afiixed to a supporting plate 62 is mounted on top of the reservoir 60 and drive shaft 63 extends laterally therefrom. A pulley 64 is secured on the outer end of the shaft 63 and is connected by V- belt 65 to the inside pulley 48 on the shaft 84 (see FIG- URE 2).

A conventional worm and bevel gear unit 66 is suppor-ted from the angle irons 56 and 57 of subframe 52. The output shaft of the bevel gear extends vertically with respect to the main frame and carries on its end a sprocket 67. The input shaft 68 of the worm gear extends into driving engagement with a conventional reversible fluid motor 69. An air pipe 70 communicates with the fluid pressure reservoir 60 at one end and is connected to a two-way valve 71 at its other end. Pipes 72 and 73 are connected to the forward and reverse input ports, respectively, of the fluid motor 69. A valve control handle 74 on the valve 71 directs the flow of compressed air selectively into pipes 72 and 73 to turn the fluid motor in a predetermined direction. The control handle might be operated at the valve 71 or it might be operated remotely. A conventional bevel gear unit 80 is mounted between the angle irons 55 and 56 and carries an output shaft having a sprocket 81 lying in a horizontal plane and an input shaft having a sprocket 82 lying in a Vertical plane. In front of the subframe 52 and above the discharge end of the conveyor 39, a shaft 84 extends between the support members 10 and is rotatably mounted in pillow blocks 85 and 86 secured to the members. A pair of sprockets 87 and 88 are xedly secured tothe shaft 84 adjacent one endthere-of, so as to place the sprocket 87 in the vertical plane of the sprocket 82 on the bevel gear unit 80. A sprocket chain 89 drivingly connects the sprocket 87 with sprocket 82. Sprocket 88 is drivingly connected to sprocket 90 on conveyor belt drive shaft 40 by a sprocket chain 91.

A at transversely extending plate of rectangular configuration overlies the main frame 2 at its front end, as is best seen in FIGURE 6. A circular aperture 96 extends through the center of the plate 95. A bearing plate 97 of circular configuration is secured to the upper surface of the plate 95 by conventional means such as bolts 98. Bearing plate 97 has an annular bearing surface 99 on its top surface, and includes a vertically extending ange 100 at its center forming a bore 101 through the bearing plate. A snap ring 102 is releasably seated in a snap ring seat in the flange 100 for reasons which will be hereinafter explained.

A swingable discharge conveyor and mounting assembly is indicated generally at 105. The conveyor 105 includes a base framework and mounting structure 106 and conveyor belt supporting extension 107.

Base framework and mounting structure 106 comprises a generally rectangular bearing plate 108 which overlies bearing surface 99, as is best seen in FIGURE 6. A centrally disposed annular aperture 109 is formed in the center of plate 103. The aperture 109 snugly but slidingly engages the annular periphery of flange 100 and is held in this relationship by snap ring 102. Plate 108 carries transversely extending angle irons 110 and 111 secured to its upper surface by welding or the like. Longitudinally extending angle irons 112 and 113 connect the ends of angle iron 110 and 111 and four angle iron posts 114 extend upwardly from the corners of the rectangle formed. Transversely extending angle iron stringers 116 and 117 extend outwardly of the main frame 2 on either side thereof and are secured by welding to corresponding pairs of laterally aligned angle irons 114. A channel ring 118 underlies the ends of stringers 116 and 117 and is secured thereto by conventional means. Longitudinally extending channel braces 119 and 120 rigidify t-he ring mounting by rigidly securing the ring to transversely extending angle irons 121 and 122 welded to the upper ends of corresponding pairs of laterally aligned angle iron posts 114.

A pair of box-like frames indicated generally at 125 and 126, in FIGURE 5, are secured to transversely extending angle irons 110 and 121, and 111 and 122, respectively. These box-like frames include vertically extending angle iron posts 127 and 128, respectively, which support a bevel gear unit 129 therebetween. The bevel gear unit is secured to the posts 127 and 128 by bolts 130, but it will be understood that any attaching means might be utilized. The power input shaft 131 of the bevel gear unit carries a horizontally disposed sprocket 132 at its bottom end, which sprocket lies in the same horizontal plane occupied by sprocket 81 on bevel gear unit 80. A sprocket chain 133, indicated in dotted lines in FIGURE 5, drivingly connects the sprockets 81 and 132. A power output shaft 135, as best seen in FIGURE 5, extends horizontally from the bevel gear unit transversely of the main frame. A shaft supporting bearing block 136 mounted on the angle iron 113 supports the outer end of the output shaft and a sprocket 137, lying in a vertical plane, is aiixed to the shaft at its outermost extremity.

The conveyor belt supporting extension 107 includes longitudinally extending, horizontally disposed frame members 140 and 141 which are `connected by vertically extending braces 142, 143 and 144. Diagonal brace 145 further rigidifes this portion of the conveyor supporting framework. Upwardly inclined frame members 148 and 149 connected by diagonal braces 150 are secured at their lower ends to frame members 141 and 140, respectively, by conventional means such as welding or the like. The members 148 are likewise secured to braces 143 and 145. At the discharge end of the extension 107 a pair of channel members 151 and 152 are secured to opposite sides of the framework and carry a shaft 153 therebetween. This structure is best seen in FIGURE 2. A conveyor belt idler roller 154 is rotatably mounted on the shaft 153. At the loading end of the extension 107 a pair of pillow blocks 155 mounted on the braces 143 carry a conveyor belt drive roller 156. This structure is illustrated best in FIGURE l. Spaced at generally regular intervals along the frame elements 148 are conventional idler assemblies 160. A conveyor -belt 161 extends around the drive roller 156 and the idler roller 154 and is supported by the idler assemblies 160 in a conventional manner. A -conveyor feed chute 162 is positioned over the inner end of the `conveyor belt 161 and secured to the frame members by any conventional means.

On one end of the shaft which supports drive roller 156 for rotation in the pillow .blocks 155 is a sprocket 165 which lies in the vertical plane occupied lby sprocket 137. Sprocket 165 is connected to sprocket 137 by a sprocket chain, not shown.

A relatively large sprocket chain 168 lies in the channel lof the ring 118 and drivingly connects the ring to the sprocket 67. The sprocket chain 168 has a tensioning resilient coil spring 169 interposed between opposite ends of the chain, as best seen in FIGURE 7, to maintain a taut relationship therein. At the upper ends of support members 10, a yoke supporting structure, indicated generally at 172, is disposed. The yoke supporting structure includes identical upper and lower sections comprising stringers 173 connecting the support members 10, converging angle irons 174 and 175 and transversely extending connecting members 176. As best seen in FIGURES 3 and 4, the members 176 carry a shaft 177 xedly secured thereto by U-bolts 178 and nuts 179. A transversely extending yoke 180 in the form of an angle iron has a bearing structure 181 bolted thereto, as at 182. Bearing 181 surrounds shaft 177 and supports yoke 180 for pivotal movement about shaft 177. As seen in FIGURE 3, eyebolts 184 and 185 extend through the yoke 180 at its outer extremities and wire cables 186 and 187, respectively, are secured thereto. Each of the cables 186 and 187 is secured at its outer end to a cable anchor 188 and 189, each of which, in turn, is welded or bolted to the frame elements 148 of the extension 107.

The use and operation of this invention including a new method of loading trucks or the like may be described as follows:

Due to the fact that the crusher and loader is supported on wheels, including -steerable wheels 4, it can be towed readily between operational locations without difficulty. Upon reaching such a location the towing vehicle is detached and a pair of dump trucks are positioned as shown in FIGURE 8 relative to the discharge conveyor. At this time rough stone, sea shells or any like material might be deposited by any conventional loading device into the hopper 36 and will subsequently proceed into the vibrating screen assembly 28. Here, the tnes, that is the particles which are initially smaller in size than the minimum size that the operator desires, will pass through screens 31 and 31a and into the lines chute 32. Transversely extending conveyor 33 then carries the lines to a waiting truck or storage pile at the side of the main frame 2. The material which is initially larger than the maximum desired size does not pass through the vibrating screen element 31. Rather, it is carried by gravity and vibration along the screen 31 and into roll feed chute 23 whereupon it will pass through -oppositely turning crusher rolls 19 and 20 and be reduced to the aforementioned maximum particle size. That material which initially is of the correct size passes through screen 31 and is carried by gravity and vibration along screen 31a to chute 23a, and then onto the lower end of conveyor 39. As the crushed particles fall from between the crusher rolls 19 and 20, they will be carried by conveyor 39 upwardly to be deposited in the discharge conveyor feed chute 162. So long as the hopper 36 is kept full, or nearly full, the crusher will emit a continuous stream of crushed materials.

The conveyor belt 161 of the discharge conveyor 105 is driven through a series of belts, pulleys, chains and sprockets which include a plurality of V-belts 49 connecting the engine 14 with reduction gear unit 45. The reduction gear box reduces the r.p.m. to one compatible with conveyor belt operation and turns the shaft 40 and drive roller 41 at that speed. A sprocket 90 is carried on shaft 41 and through sprocket chain 91 drives an idler sprocket 88. Through idler shaft 84 sprocket 88 drives sprocket 87 and sprocket 87 is, in turn, connected to the input sprocket 82 of bevel gear unit 80. The output sprocket 81 of bevel gear unit 80 is then connected by another sprocket chain 133 to the input sprocket 132 of bevel gear unit 129. Output shaft 135 of bevel gear unit 129 carries a sprocket 137 at its outer end and this sprocket 137 drives the conveyor drive roller 156 of discharge conveyor through a sprocket chain. The various sprockets and chains are designed to provide a conveyor belt speed for discharge conveyor 105 which is compatible with the conveyor belt speed of the conveyor 39. As will readily be seen, the discharge conveyor 105 can operate at all times, whether the conveyor discharge conveyor 105 is stationary or swinging laterally of the main frame 2.

To swing the discharge conveyor laterally of the crusher and loader, a second power take-oit from the engine 14 is employed. In this power circuit the small pulley 48 carried by shaft 84 drives pulley 64 through V-belt 65. Rotation of pulley 64 in turn drives input power shaft 63 which operates compressor 61. Compressor 61 maintains a predetermined established pressure in reservoir 60 upon which the operator of the discharge conveyor can draw by manipulating valve 71 to turn the fluid motor 69 and, consequently, through Worm and bevel gear unit 66 and large sprocket chain 168, rotate the ring 118 rigidly secure-d to the conveyor 105. Reversal of direction of rotation can be accomplished instantaneously by merely changing the direction of fluid flow through the lluid motor 69 and a steady continuous swinging movement of the discharge conveyor 105 is the end result.

This unique discharge conveyor mounting construction may be employed advantageously in a new method of loading trucks with crushed road building material, or for that matter, bulk ore or the like. As was previously set out, at the beginning of operations of the conveyor and loader a pair of trucks are positioned back to back, as is shown in FIGURE 8. This then, is the relationship at the beginning of the days operations. The conveyor operator will then position the conveyor by manipulating the fluid motor 69 and swinging the conveyor extension 107 to the position shown in solid lines in FIGURE 8, for example.

Material having been fed to the crusher, in the manner hereinbefore described, will pass out of the discharge conveyor and into the truck body, which is identied by the letter A in FIGURE 8. As the crushed material pours into the truck body, the operator will slowly swing the conveyor towards the rear of the truck A in an automatic filling operation of the truck body. Upon reaching the back of the truck A, the conveyor will pass directly into the back of a truck B and continue forwardly into the dotted line position, as seen in FIGURE 8, in automatically loading truck B.

While the continuous loading of truck B is taking place, truck A will be driven away from its indicated position and a third truck backed into the same spot.

Meanwhile, the swinging discharge conveyor will have reached the position shown in dotted lines in FIGURE A and, by control of the speed of swinging, will have loaded evenly approximately one half of the body of truck B. At this point the operator will reverse the direction of travel of the swinging discharge conveyor and load the other half of truck B in the backward swinging movement toward the body of the third truck which has now replaced truck A.

Upon reaching the back of the body of truck B, at which time the body of truck B will be full of crushed material the conveyor again will pass over the back end and into loading relationship with the body of the third truck. Truck B can then be driven away to its delivery point in the manner of truck A and a fourth truck, which in some instances, depending upon the delivery time of the trucks, might be truck A again, is backed into the position shown occupied by truck B in FlGURE 8.

It will thus be seen that a continuous truck loading operation can be carried on in a manner which is productive of lower costs through savings in time and manpower.

By proper positioning of the trucks, the operator can insure an even lilling thereof as the discharge end of the discharge conveyor traverses the load carrying bodies of trucks A and B and their successors.

Another great advantage of the swingable discharge conveyor is the additional flexibility of the machine thereby made possible. For example, it not infrequently happens that differing crushed rock sizes are required. By merely making changes in the Crusher to produce a different size material, and screen 31a, the machine can discharge into two or more piles of different sized material without moving the machine. Once the machine is spotted, secured, and the supply conveyor system built, it is a great deal easier to change the crusher than to move the machine.

The swingable discharge conveyor further enables production to be maintained even if the material removal capacity is below the output capacity of the machine. Thus should several trucks break down, those remaining in operation can be loaded and material processed between loadings can be directed into a pile which can be removed at a time when additional removal capacity is available.

It will be understood that variations may be made in conguration and disposition of parts, and it is accordingly intended that the foregoing description be taken as illustrative only and not definitive and that the scope of the invention should be limited only by the appended claims.

I claim:

1. A conveyor assembly for discharging agglomerate material from an agglomerate material processing machine,

said conveyor assembly including, in combination,

a continuously operable discharge conveyor,

said conveyor having an inner end portion adapted to receive material, and an outer end portion adapted t discharge material,

said conveyor including an elongated framework,

a first roller mounted on the inner end portion of the framework and a second roller mounted on the 'outer end portion of the framework,

an orbitally movable conveyor belt trained around the rollers and means for supporting the belt intermediate the rollers,

a base carried by the inner end portion of the framework, said base having a bearing surface,

a bearing surface carried by the machine frame,

said bearing surfaces being opposed to and in sliding contact with one another,

iirst power means for powering the conveyor, and

second power means for swinging the framework, and thereby the conveyor, relative to the machine frame in alternate directions in consonance with available material removal capacity.

2. The continuously discharging conveyor assembly of claim l further including tension means extending from the machine frame outwardly to the outer end portion of the conveyor,

said tension means being swingable about an axis which is substantially coincident with the axis of swing of the framework.

3. The continuously discharging conveyor assembly of claim 1 further characterized in that the framework base includes a ring integral therewith,

said second power means being connected to the ring by flexible force transmitting means.

Li. The continuously discharging conveyor assembly of claim 3 further characterized in that the exible force transmitting means comprises an extensible bodily exible torque transmitting member engageable with the base ring.

5. The continuously discharging conveyor assembly of claim 4 further including means for reversing the direction of rotation of the ring for reversing the direction of swing of the conveyor, or, alternately, for maintaining the ring stationary.

6. A system for continuously processing and incrementally removing agglomerate material, said system including, in combination,

a plurality of material removal receptacles, and

an agglomerate material processing machine, said processing machine including the conveyor assembly of claim 1,

said conveyor assembly being further characterized in that the length of the conveyor and the length of the arc of swing of the discharge end of the conveyor is so proportioned to the configuration of receptacles for removing the discharged material that the discharge end of the conveyor overlies the receptacles throughout its arc of swing.

7. A conveyor assembly for discharging agglomerate material,

said conveyor assembly including, in combination,

a continuously operable discharge conveyor,

said conveyor having an inner end portion adapted to receive material, and an outer end portion adapted to discharge material,

said conveyor including an elongated framework,

a irst roller mounted on the inner end portion of the framework and a second roller mounted on the outer end portion of the framework,

an orbitally movable conveyor belt trained around the rollers and means for supporting the belt intermediate the rollers,

a base carried by the inner end portion of the framework, said base having a bearing surface adapted for engagement with a bearing surface carried by a supporting structure,

said bearing surfaces being yopposed to and in sliding contact with one another,

first power means for powering the conveyor, and

second power means for swinging the framework, and

thereby the conveyor, relative to the supporting structure in alternate directions in consonance with available material removal capacity.

8. In a Crusher and loader for continuously processing and incrementally discharging agglomerate materials such as rock, coal or the like having a frame, crushing means which emits a continuous stream yof crushed material, and conveyor means extending from said crushing means, said conveyor means including at least a discharge conveyor, the improvement comprising:

upper and lower substantially coaxial vertical pivot means carried by said frame;

said discharge conveyor having its receiving end supported by the lower pivot means and having its discharge end supported through a tension member by the upper pivot means;

whereby said conveyor and tension member are substantially swingable, horizontally, to shift the discharge end of said conveyor from one position to another at substantially the same level,

said discharge conveyor further having its receiving end positioned to receive the continuous stream of crushed material from the crushing means in all relative positions of the conveyor and the frame.

9. In a crusher and loader according to claim 8, the improvement wherein said pivot means are spaced apart vertically to provide room for the feed end of an upstream conveyor that is positioned to feed said discharge conveyor.

10. In a machine for continuously processing and inerementally discharging processing agglomerate materials such as rock, coal or the like with minimum spillage, said machine having a frame, means carried by the frame for emitting a Continous stream of processed, agglomerate material, and conveyor means extending from said continous stream emitting means, said conveyor means including at least a discharge conveyor, the improvement comprising:

vertically spaced, independent upper and lower pivotal members journaled on said frame for swinging movement about the same vertical axis;

said discharge conveyor having its receiving end supported by the lower pivotal member;

said discharge conveyor having its discharge end supported by the upper pivotal member through a cable connected between said discharge end and said upper pivotal member;

whereby said conveyor is horizontally swingable with said cable and said pivotal means to shift the discharge end of the conveyor from one position to another at the same level,

said discharge conveyor further having its receiving end positioned to receive the continuous stream of processed material in all relative positions of the conveyor and the frame.

References Cited by the Examiner UNITED STATES PATENTS 527,411 10/1894 Coxe 241--223 X 1,131,229 3/1915 Giddings 241-223 X 1,327,469 1/ 1920 Hartley 198-125 1,462,096 7/ 1923 Wiertz 241-223 X 2,099,070 11/1937 Lundbye 198-*119 2,303,490 12/1942 Nelson 198-125 2,648,476 8/1953 Kennedy 141-1 2,650,723 9/1953 Sammel' 198--125 2,720,353 10/1955 Stirn et al 141-1 2,925,079 2/1960 Saxe 241--101 WILLIAM W. DYER, IR., Primary Examiner.

I. SPENCER OVERHOLSER, ANDREW R. JUHASZ,

Examiners. 

10. IN A MACHINE FOR CONTINUOUSLY PROCESSING AND INCREMENTALLY DISCHARGING PROCESSING AGGLOMERATE MATERIALS SUCH AS ROCK, COAL OR THE LIKE WITH MINIMUM SPILLAGE, SAID MACHINE HAVING A FRAME, MEANS CARRIED BY THE FRAME FOR EMITTING A CONTINUOUS STREAM OF PROCESSED, AGGLOMERATE MATERIAL, AND CONVEYOR MEANS EXTENDING FROM SAID CONTINUOUS STREAM EMITTING MEANS, SAID CONVEYOR MEANS INCLUDING AT LEAST A DISCHARGE CONVEYOR, THE IMPROVEMENT COMPRISING: VERTICALLY SPACED, INDEPENDENT UPPER AND OWER PIVOTAL MEMBERS JOURNALED ON SAID FRAME FOR SWINGING MOVEMENT ABOUT THE SAME VERTICAL AXIS; SAID DISCHARGE CONVEYOR HAVING ITS RECEIVING END SUPPORTED BY THE LOWER PIVOTAL MEMBER; SAID DISCHARGE CONVEYOR HAVING ITS DISCHARGE END SUPPORTED BY THE UPPER PIVOTAL MEMBER THROUGH A CABLE 